WO2016152537A1 - 燃料輸送用多層チューブおよびそれを備えた燃料ポンプモジュール、ならびにこれらの使用方法 - Google Patents

燃料輸送用多層チューブおよびそれを備えた燃料ポンプモジュール、ならびにこれらの使用方法 Download PDF

Info

Publication number
WO2016152537A1
WO2016152537A1 PCT/JP2016/057439 JP2016057439W WO2016152537A1 WO 2016152537 A1 WO2016152537 A1 WO 2016152537A1 JP 2016057439 W JP2016057439 W JP 2016057439W WO 2016152537 A1 WO2016152537 A1 WO 2016152537A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel
layer
multilayer tube
acid
semi
Prior art date
Application number
PCT/JP2016/057439
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
剛 田崎
鈴木　英昭
長谷川　敏明
Original Assignee
株式会社クラレ
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社クラレ filed Critical 株式会社クラレ
Priority to KR1020177026114A priority Critical patent/KR102472750B1/ko
Priority to US15/558,822 priority patent/US10000045B2/en
Priority to CN201680016479.5A priority patent/CN107405906B/zh
Priority to BR112017019632-8A priority patent/BR112017019632B1/pt
Priority to JP2017508198A priority patent/JP6879489B2/ja
Priority to EP16768440.6A priority patent/EP3272531A4/en
Priority to MX2017011988A priority patent/MX2017011988A/es
Publication of WO2016152537A1 publication Critical patent/WO2016152537A1/ja

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B23/00—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B23/00—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
    • B32B23/04—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B23/042—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B23/00—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
    • B32B23/04—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B23/06—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose comprising such cellulosic plastic substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B23/00—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose
    • B32B23/10—Layered products comprising a layer of cellulosic plastic substances, i.e. substances obtained by chemical modification of cellulose, e.g. cellulose ethers, cellulose esters, viscose next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/10—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/22—Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/281—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyimides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/285—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/286—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polysulphones; polysulfides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/28—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42
    • B32B27/288—Layered products comprising a layer of synthetic resin comprising synthetic resins not wholly covered by any one of the sub-groups B32B27/30 - B32B27/42 comprising polyketones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B32B27/322—Layered products comprising a layer of synthetic resin comprising polyolefins comprising halogenated polyolefins, e.g. PTFE
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0017—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor related to fuel pipes or their connections, e.g. joints or sealings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • F16L11/125—Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting non-inflammable or heat-resistant hoses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/03—3 layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/40—Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/103—Metal fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/101—Glass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/102—Oxide or hydroxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/104—Oxysalt, e.g. carbonate, sulfate, phosphate or nitrate particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/105—Metal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/107—Ceramic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
    • B32B2264/10—Inorganic particles
    • B32B2264/107—Ceramic
    • B32B2264/108—Carbon, e.g. graphite particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/546—Flexural strength; Flexion stiffness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B32B2307/7265—Non-permeable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/732—Dimensional properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2597/00—Tubular articles, e.g. hoses, pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/04—Feeding by means of driven pumps

Definitions

  • the present invention relates to a fuel transport tube and a fuel pump module, and methods of using them. More specifically, a multilayer tube for transporting fuel that does not easily crack when inserted into another member, has excellent elongation characteristics, and has both an innermost layer and an outermost layer that are excellent in biodiesel fuel resistance, and the multilayer for transporting fuel.
  • the present invention relates to a fuel pump module including a tube, and a method of using them.
  • biomass-derived fuels have begun to be used as fuel for automobiles and the like from the viewpoint of reducing greenhouse gases.
  • a fuel containing FAME Fatty Acid Methyl Ester: fatty acid methyl ester
  • biodiesel fuel a fuel containing FAME (Fatty Acid Methyl Ester: fatty acid methyl ester) obtained by transesterifying vegetable oil with methanol and separating and removing glycerin
  • RME derived from rapeseed oil SME derived from soybean (Soybean Methyl Ester), SFME derived from sunflower oil (Sunflower Methyl Ester), PME derived from palm oil, PalmE Examples thereof include mixed fatty acid methyl esters containing unsaturated fatty acid methyl esters such as (Jatropha Methyl Ester).
  • the dicarboxylic acid component is composed of oxalic acid
  • the diamine component is composed of 1,9-nonanediamine and 2-methyl-1,8-octanediamine
  • 1,9-nonanediamine and 2-methyl-1,8 -It is described that a molded member comprising a polyamide resin having an octanediamine molar ratio of 1:99 to 99: 1 is excellent in biodiesel fuel resistance and the like.
  • the molded member is a tube, the elongation characteristics are inferior, and cracks may occur when inserted into another member such as a quick connector.
  • Patent Document 3 a high-temperature chemical solution and / or a gas transporting laminated hose comprising a layer made of an aliphatic polyamide and a layer made of a semi-aromatic polyamide having a specific structure is excellent in chemical resistance and the like. It is described. However, the laminated hose is not supposed to be used in an environment where both the innermost layer and the outermost layer are in contact with the biodiesel fuel.
  • the present inventors have found that the above problem can be solved by configuring the innermost layer, the outermost layer, and the intermediate layer of the multilayer tube for fuel transportation from a resin composition that satisfies a specific condition. That is, the present invention relates to the following [1] to [11].
  • a multilayer tube for fuel transportation including an innermost layer (A), an outermost layer (B), and an intermediate layer (C),
  • the innermost layer (A) and the outermost layer (B) are composed of a resin composition containing 40% by mass or more of a semi-aromatic polyamide,
  • the bending elastic modulus measured according to ISO 178 of the material constituting the intermediate layer (C) is 800 MPa or less
  • a multilayer tube for fuel transportation which is used in an environment where both the innermost layer (A) and the outermost layer (B) are in contact with biodiesel fuel.
  • the semi-aromatic polyamide has a dicarboxylic acid unit containing 50 to 100 mol% of at least one selected from terephthalic acid units and naphthalenedicarboxylic acid units, and 60 to 60 aliphatic diamine units having 4 to 18 carbon atoms.
  • the biodiesel fuel is a biodiesel fuel containing 20% by mass or more of FAME.
  • a method for using a multilayer tube for fuel transportation including an innermost layer (A), an outermost layer (B), and an intermediate layer (C),
  • the innermost layer (A) and the outermost layer (B) are composed of a resin composition containing 40% by mass or more of a semi-aromatic polyamide,
  • the bending elastic modulus measured according to ISO 178 of the material constituting the intermediate layer (C) is 800 MPa or less
  • the usage method of the multilayer tube for fuel transportation characterized by using in the environment where both an innermost layer (A) and an outermost layer (B) contact biodiesel fuel.
  • the fuel pump module [10] The fuel pump module according to [9], wherein the biodiesel fuel is a biodiesel fuel containing 20% by mass or more of FAME. [11] In an environment where the fuel transport multilayer tube according to any one of [1] to [6] is provided, and the innermost layer (A) and the outermost layer (B) of the fuel transport multilayer tube are both in contact with the biodiesel fuel. A method of using a fuel pump module, wherein the fuel pump module is used.
  • the multilayer tube for fuel transportation which is hard to generate
  • a fuel pump module with a multi-layer tube for use as well as a method for using them can be provided.
  • the multilayer tube for fuel transportation of the present invention is a multilayer tube for fuel transportation including an innermost layer (A), an outermost layer (B), and at least an intermediate layer (C), wherein the innermost layer (A) and the outermost layer (B ) Is made of a resin composition containing 40% by mass or more of a semi-aromatic polyamide, has a flexural modulus measured in accordance with ISO 178 of the material constituting the intermediate layer (C) of 800 MPa or less, and an innermost layer (A ) And the outermost layer (B) are used in an environment where both are in contact with biodiesel fuel.
  • the biodiesel fuel refers to a fuel containing FAME such as RME, SME, SFME, PME, JME. Since biodiesel fuel containing 20% by mass or more of FAME requires particularly high resistance, the multilayer tube for fuel transportation of the present invention is applied to an environment in contact with biodiesel fuel containing 20% by mass or more of FAME. Is preferred. The present invention is described in detail below.
  • the innermost layer (A) and the outermost layer (B) of the multilayer tube for fuel transportation of the present invention are made of a resin composition containing 40% by mass or more of semi-aromatic polyamide.
  • the semi-aromatic polyamide means a polyamide containing a dicarboxylic acid unit containing an aromatic dicarboxylic acid unit as a main component and a diamine unit containing an aliphatic diamine unit as a main component, or an aliphatic dicarboxylic acid unit as a main component.
  • main component means that it constitutes 50 to 100 mol%, preferably 60 to 100 mol%, of all units of dicarboxylic acid units, and 50 to 100 mol% of all units of diamine units. It constitutes 100 mol%, preferably 60 to 100 mol%.
  • a polyamide containing a dicarboxylic acid unit having an aromatic dicarboxylic acid unit as a main component and a diamine unit having an aliphatic diamine unit as a main component is preferable, and is selected from terephthalic acid units and naphthalenedicarboxylic acid units. More preferred is a semi-aromatic polyamide containing a dicarboxylic acid unit containing 50 to 100 mol% of at least one of the above and a diamine unit containing 60 to 100 mol% of an aliphatic diamine unit having 4 to 18 carbon atoms.
  • the total amount of the dicarboxylic acid unit and the diamine unit constituting the semi-aromatic polyamide is preferably 60 mol% or more with respect to 100 mol% of all the monomer units constituting the semi-aromatic polyamide. More preferably, it is more than mol%, and still more preferably more than 90 mol%.
  • the semi-aromatic polyamide will be described in more detail.
  • the dicarboxylic acid unit constituting the semiaromatic polyamide preferably has a content of at least one selected from a terephthalic acid unit and a naphthalenedicarboxylic acid unit of 50 to 100 mol%.
  • the content of at least one selected from a terephthalic acid unit and a naphthalenedicarboxylic acid unit in the dicarboxylic acid unit is more preferably in the range of 75 to 100 mol%, and still more preferably in the range of 90 to 100 mol%.
  • Examples of the naphthalenedicarboxylic acid unit include units derived from 2,6-naphthalenedicarboxylic acid, 2,7-naphthalenedicarboxylic acid, and 1,4-naphthalenedicarboxylic acid, and 2,6-naphthalenedicarboxylic acid unit is preferable.
  • the dicarboxylic acid unit is more preferably a terephthalic acid unit.
  • the dicarboxylic acid unit constituting the semi-aromatic polyamide may contain a dicarboxylic acid unit other than the terephthalic acid unit and the naphthalenedicarboxylic acid unit.
  • examples of such other carboxylic acid units include malonic acid, dimethylmalonic acid, succinic acid, glutaric acid, adipic acid, 2-methyladipic acid, trimethyladipic acid, pimelic acid, 2,2-dimethylglutaric acid, 2, Aliphatic dicarboxylic acids such as 2-diethylsuccinic acid, azelaic acid, sebacic acid and suberic acid; alicyclic dicarboxylic acids such as 1,3-cyclopentanedicarboxylic acid and 1,4-cyclohexanedicarboxylic acid; isophthalic acid, 1, 4-phenylenedioxydiacetic acid, 1,3-phenylenedioxydiacetic acid, diphenic acid, diphenylmethane-4,4
  • the content of these other dicarboxylic acid units in the dicarboxylic acid unit is preferably 50 mol% or less, more preferably 25 mol% or less, and even more preferably 10 mol% or less.
  • a unit derived from a polyvalent carboxylic acid such as trimellitic acid, trimesic acid, pyromellitic acid, and the like may be included within a range in which melt molding is possible.
  • the diamine unit constituting the semi-aromatic polyamide is an aliphatic diamine having 4 to 18 carbon atoms from the viewpoint of toughness, slidability, heat resistance, moldability, low water absorption and lightness of the innermost layer and outermost layer. It is preferable to contain 60 to 100 mol% of units.
  • the content of the aliphatic diamine unit having 4 to 18 carbon atoms in the diamine unit is more preferably in the range of 75 to 100 mol%, and further preferably in the range of 90 to 100 mol%.
  • Examples of the aliphatic diamine unit having 4 to 18 carbon atoms include 1,4-butanediamine, 1,5-pentanediamine, 1,6-hexanediamine, 1,7-heptanediamine, and 1,8-octane.
  • Linear aliphatic diamines such as 1,16-hexadecanediamine, 1,17-heptadecanediamine, 1,18-octadecanediamine; 2-methyl-1,3-propanediamine, 2-methyl-1,4- Butanediamine, 2-methyl-1,5-pentanediamine, 3-methyl-1,5-pentanediamine, 2,2 Branched chains such as 4-trimethyl-1,6-hexanediamine, 2,4,4-trimethyl-1,
  • the aliphatic diamine unit having 4 to 18 carbon atoms is preferably an aliphatic diamine unit having 6 to 18 carbon atoms, and an innermost layer and an outermost layer that are more excellent in biodiesel fuel resistance can be obtained.
  • 9-nonanediamine unit and 2-methyl-1,8-octanediamine unit are more preferable, which are 1,9-nonanediamine unit and 2-methyl-1,8-octanediamine unit. More preferably.
  • the diamine unit includes both a 1,9-nonanediamine unit and a 2-methyl-1,8-octanediamine unit
  • the diamine unit constituting the semi-aromatic polyamide may contain other diamine units other than the aliphatic diamine unit having 4 to 18 carbon atoms.
  • examples of such other diamine units include aliphatic diamines such as ethylenediamine, 1,2-propanediamine, and 1,3-propanediamine; alicyclic diamines such as cyclohexanediamine, methylcyclohexanediamine, and isophoronediamine; p-phenylene.
  • Examples include units derived from aromatic diamines such as diamine, m-phenylenediamine, xylylenediamine, 4,4′-diaminodiphenylmethane, 4,4′-diaminodiphenylsulfone, and 4,4′-diaminodiphenyl ether. And one or more of these may be included.
  • the content of these other diamine units in the diamine unit is preferably 40 mol% or less, more preferably 25 mol% or less, and even more preferably 10 mol% or less.
  • the semi-aromatic polyamide may contain an aminocarboxylic acid unit as long as the effects of the present invention are not impaired.
  • the aminocarboxylic acid unit include units derived from 11-aminoundecanoic acid, 12-aminododecanoic acid and the like, and two or more aminocarboxylic acid units may be included.
  • the content of aminocarboxylic acid units in the semi-aromatic polyamide is preferably 40 mol% or less, more preferably 20 mol% or less, based on 100 mol% of all monomer units constituting the semi-aromatic polyamide. Preferably, it is 10 mol% or less.
  • the semi-aromatic polyamide may contain lactam units as long as the effects of the present invention are not impaired.
  • lactam unit include units derived from ⁇ -caprolactam, enantolactam, undecane lactam, lauryl lactam, ⁇ -pyrrolidone, ⁇ -piperidone, and the like. Also good.
  • the content of lactam units in the semiaromatic polyamide is preferably 40 mol% or less, more preferably 20 mol% or less, with respect to 100 mol% of all monomer units constituting the semiaromatic polyamide, More preferably, it is 10 mol% or less.
  • a typical semi-aromatic polyamide containing a dicarboxylic acid unit containing an aromatic dicarboxylic acid unit as a main component and a diamine unit containing an aliphatic diamine unit as a main component a typical semi-aromatic polyamide containing a dicarboxylic acid unit containing an aromatic dicarboxylic acid unit as a main component and a diamine unit containing an aliphatic diamine unit as a main component.
  • polyamide 6T polyhexamethylene terephthalamide
  • polyamide 9T polynonamethylene terephthalamide
  • polyamide 10T polydecamethylene terephthalamide
  • polyamide 6I polyhexamethylene isophthalamide
  • polyamide 6I polyamide 6I and polyamide
  • a copolymer of 6T polyamide 6I / 6T
  • a copolymer of polyamide 6T and polyundecanamide polyamide 6T / 11
  • an aliphatic dicarboxylic acid unit is used for the semi-aromatic polyamide containing a dicarboxylic acid unit having an aliphatic dicarboxylic acid unit as a main component and a diamine unit having an aromatic diamine unit as a main component.
  • an aromatic diamine unit the unit induced
  • a typical semi-aromatic polyamide containing a dicarboxylic acid unit having an aliphatic dicarboxylic acid unit as a main component and a diamine unit having an aromatic diamine unit as a main component.
  • the aromatic polyamide include polymetaxylylene adipamide (MXD6), a copolymer of paraxylylenediamine and sebacic acid (PXD10), and the like.
  • 10% or more of the end groups of the molecular chain of the semi-aromatic polyamide is sealed with an end-capping agent.
  • the ratio of the end groups of the molecular chain being sealed with the end-capping agent (end-capping rate) is more preferably 20% or more.
  • the end capping agent is not particularly limited as long as it is a monofunctional compound having reactivity with the amino group or carboxyl group at the end of the polyamide, but from the viewpoint of reactivity and stability of the capping end, Carboxylic acid or monoamine is preferable, and monocarboxylic acid is more preferable from the viewpoint of easy handling.
  • monoisocyanates, monoacid halides, monoesters, monoalcohols, and the like can also be used as the end-capping agent.
  • the monocarboxylic acid used as the end-capping agent is not particularly limited as long as it has reactivity with an amino group.
  • acetic acid, propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, laurin Aliphatic monocarboxylic acids such as acid, tridecanoic acid, myristic acid, palmitic acid, stearic acid, pivalic acid and isobutyric acid; cycloaliphatic monocarboxylic acids such as cyclohexanecarboxylic acid; benzoic acid, toluic acid, ⁇ -naphthalenecarboxylic acid , ⁇ -naphthalene carboxylic acid, methyl naphthalene carboxylic acid, aromatic monocarboxylic acid such as phenyl acetic acid; any mixtures thereof.
  • acetic acid propionic acid, butyric acid, valeric acid, caproic acid, caprylic acid, lauric acid, tridecanoic acid, myristic acid, palmitic acid, stearin, etc. Acid and benzoic acid are preferred.
  • the monoamine used as the end-capping agent is not particularly limited as long as it has reactivity with a carboxyl group.
  • Aliphatic monoamines such as amine, dimethylamine, diethylamine, dipropylamine and dibutylamine
  • Cycloaliphatic monoamines such as cyclohexylamine and dicyclohexylamine
  • Aromatic monoamines such as aniline, toluidine, diphenylamine and naphthylamine; any mixtures thereof Can be mentioned.
  • butylamine, hexylamine, octylamine, decylamine, stearylamine, cyclohexylamine, and aniline are preferable from the viewpoints of reactivity, boiling point, stability of the sealing end, price, and the like.
  • the end-capping rate of the semi-aromatic polyamide is determined by measuring the number of carboxyl group terminals, amino group terminals, and terminal groups blocked by the terminal blocking agent present in the semi-aromatic polyamide, respectively. It is obtained according to 1).
  • the number of each end group is preferably determined from the integral value of the characteristic signal corresponding to each end group by 1 H-NMR in terms of accuracy and simplicity.
  • Terminal sealing rate (%) [(TS) / T] ⁇ 100 (1) [Wherein T represents the total number of end groups of the molecular chain of the semi-aromatic polyamide (this is usually equal to twice the number of polyamide molecules), and S is the remaining carboxyl group ends and amino groups remaining unsealed. Represents the total number of base ends. ]
  • Semi-aromatic polyamide can be produced by a condensation polymerization reaction using any method known as a method for producing polyamide.
  • a method for producing polyamide for example, in the case of a polyamide containing a dicarboxylic acid unit and a diamine unit, a solution polymerization method or an interfacial polymerization method using an acid chloride and a diamine as raw materials, a melt polymerization method using a dicarboxylic acid and a diamine as raw materials, a solid phase polymerization method, a melting method It can be produced by a method such as extrusion polymerization.
  • the molar ratio of dicarboxylic acid and diamine (dicarboxylic acid / diamine) to be subjected to the condensation polymerization reaction is preferably 0.80 to 1.20, more preferably 0 from the viewpoint of improving moldability and mechanical strength. .90 to 1.10, more preferably 0.99 to 1.01.
  • phosphoric acid, phosphorous acid, hypophosphorous acid, their salts or esters can be added as a catalyst.
  • the salt or ester include phosphoric acid, phosphorous acid or hypophosphorous acid, potassium, sodium, magnesium, vanadium, calcium, zinc, cobalt, manganese, tin, tungsten, germanium, titanium, antimony, and the like.
  • Salt with metal ammonium salt of phosphoric acid, phosphorous acid or hypophosphorous acid; ethyl ester, isopropyl ester, butyl ester, hexyl ester, isodecyl ester, decyl of phosphoric acid, phosphorous acid or hypophosphorous acid
  • esters stearyl esters, and phenyl esters.
  • sodium hypophosphite and phosphorous acid are preferable because they are inexpensive and have a small amount of triamine.
  • the semiaromatic polyamide preferably has an intrinsic viscosity [ ⁇ ] measured in concentrated sulfuric acid at 30 ° C. in the range of 0.6 to 2.0 dl / g, and 0.7 to 1.9 dl / g. More preferably, it is in the range of g, more preferably in the range of 0.8 to 1.8 dl / g. If a semi-aromatic polyamide having an intrinsic viscosity of 0.6 dl / g or more is used, the mechanical properties of the innermost layer and the outermost layer of the formed multilayer tube for fuel transportation are improved. If a semi-aromatic polyamide having an intrinsic viscosity of 2.0 dl / g or less is used, the moldability of the resulting polyamide resin composition is good.
  • the semi-aromatic polyamide has a terminal amino group content ([NH 2 ]) of preferably 5 to 60 ⁇ mol / g, more preferably 5 to 50 ⁇ mol / g, and more preferably 5 to 30 ⁇ mol. More preferably, it is in the range of / g.
  • the terminal amino group content ([NH 2 ]) is 5 ⁇ mol / g or more, the compatibility between the semi-aromatic polyamide and the impact modifier when the impact modifier described later is contained in the resin composition. Property is improved.
  • this terminal amino group content is 60 micromol / g or less, the fall of long-term heat resistance, the fall of weld strength, and the electroconductive fall at the time of making the resin composition contain the conductive filler mentioned later can be avoided.
  • a semi-aromatic polyamide containing a dicarboxylic acid unit and a diamine unit and having a terminal amino group content ([NH 2 ]) in the above-described range can be produced, for example, as follows. First, a dicarboxylic acid, a diamine, and optionally an aminocarboxylic acid, a lactam, a catalyst, and a terminal blocking agent are mixed to produce a nylon salt. At this time, the number of moles (X) of all carboxyl groups and the number of moles (Y) of all amino groups contained in the reaction raw material are represented by the following formula (2).
  • the intrinsic viscosity [ ⁇ ] of the prepolymer is in the range of 0.10 to 0.60 dl / g, there is little shift in the molar balance of carboxyl groups and amino groups and a decrease in polymerization rate at the stage of increasing the degree of polymerization. Furthermore, a semi-aromatic polyamide having a small molecular weight distribution and excellent in various performances and moldability can be obtained.
  • the polymerization degree is increased by the solid phase polymerization method, it is preferably performed under reduced pressure or under an inert gas flow.
  • the polymerization temperature is in the range of 200 to 280 ° C., the polymerization rate is high and the productivity is increased. And can effectively suppress coloring and gelation.
  • the polymerization temperature is preferably 370 ° C. or less.
  • the polyamide is hardly decomposed and the semi-aromatic polyamide is less deteriorated. Is obtained.
  • terminal amino group content ([NH 2]) is used together different kinds of polyamides, semi-aromatic polyamide having a terminal amino group content of the desired ([NH 2]).
  • terminal amino group content refers to the amount of terminal amino groups (unit: ⁇ mol) contained in 1 g of semi-aromatic polyamide, and is based on the neutralization titration method using an indicator. Can be sought.
  • the ratio of the number of amide groups (amide bonds) to the number of carbon atoms is preferably 0.170 or less, and is 0.140 or less. More preferably, it is more preferably 0.130 or less.
  • amide group concentration is 0.170 or less, the content ratio of the amide group that is the starting point of the decomposition is low, and therefore, it is advantageous because it is further excellent in resistance to an acid component among FAME decomposition products contained in biodiesel fuel. is there.
  • the amide group concentration is preferably 0.070 or more, more preferably 0.080 or more, and further preferably 0.100 or more.
  • an amide group concentration of 0.070 or more is advantageous because the rigidity of the resin composition is improved and the mechanical strength and heat resistance are further improved.
  • the amide group concentration is a value obtained from ⁇ [number of amide groups in semi-aromatic polyamide] / [number of carbons in semi-aromatic polyamide] ⁇ . Does not include those resulting from bonding.
  • the above ⁇ [number of amide groups in semi-aromatic polyamide] / [number of carbons in semi-aromatic polyamide] ⁇ is ⁇ [number of amide groups per repeating unit constituting semi-aromatic polyamide] / [semi-aromatic polyamide] It is calculated from the number of carbon atoms per constituting repeating unit] ⁇ .
  • the number of carbon atoms per repeating unit constituting the semi-aromatic polyamide is a molar ratio to the carbon number of each dicarboxylic acid unit or each diamine unit used. Calculated by summing the product of.
  • the amide group concentration is calculated by adding the amide group concentration of each semi-aromatic polyamide and its content (mass ratio).
  • the semi-aromatic polyamide used in the present invention preferably has a heat of crystal fusion ( ⁇ Hm) obtained by DSC measurement of 30 J / g or more, more preferably 40 J / g or more, and 50 J / g or more. More preferably. If the heat of crystal fusion ( ⁇ Hm) is 30 J / g or more, the crystallinity is high, and it is advantageous because it is further excellent in dimensional stability and resistance to a decomposition product of FAME contained in biodiesel fuel.
  • ⁇ Hm heat of crystal fusion
  • the semi-aromatic polyamide used in the present invention preferably has a glass transition point of 80 ° C. or higher, more preferably 90 ° C. or higher, and further preferably 100 ° C. or higher. If the glass transition point is 80 ° C. or higher, it is advantageous because it is further excellent in heat resistance and resistance to a decomposition product of FAME contained in biodiesel fuel.
  • the resin composition used for the innermost layer (A) and the innermost layer (B) of the present invention contains 40% by mass or more of the semi-aromatic polyamide.
  • the content of the semi-aromatic polyamide is preferably 60% by mass or more, more preferably 80% by mass or more, and still more preferably 90% by mass or more with respect to the resin composition.
  • the resin composition is within a range that does not impair the effects of the present invention, if necessary, other resins other than the semi-aromatic polyamide, impact resistance improver, conductive filler, filler other than conductive filler, 60 mass% or less in total of other components such as a crystal nucleating agent, a stabilizer against heat, light or oxygen, a copper stabilizer, a colorant, an antistatic agent, a plasticizer, a lubricant, a flame retardant, a flame retardant aid, It may be contained preferably 40% by mass or less, more preferably 20% by mass or less, and still more preferably 10% by mass or less.
  • polyester resins examples include polycaproamide (polyamide 6), polyhexamethylene adipamide (polyamide 66), polyundecanamide (polyamide 11), polydodecanamide (polyamide 12), and polyhexamethylene dodecanamide (polyamide).
  • polyether resins such as polyacetal and polyphenylene oxide
  • polysulfone resins such as polysulfone and polyethersulfone
  • polythioether resins such as polyphenylene sulfide and polythioether sulfone
  • polyether ketone and polyallyl ether Polyketone resins such as ketones; polyacrylonitrile, polymethacrylonitrile, acrylonitrile-styrene copolymer, acrylonitrile-butadiene-styrene copolymer, methacrylate Polynitrile resins such as nitrile-butadiene-styrene copolymers; polymethacrylate resins such as polymethyl methacrylate and polyethyl methacrylate; polyvinyl ester resins such as polyvinyl acetate; polyvinylidene chloride, polyvinyl chloride, vinyl chloride -Polyvinyl chloride resins such as
  • the multilayer characteristics of the multilayer tube for fuel transportation of the present invention are more excellent.
  • the impact resistance improver include rubbery polymers, and those having a flexural modulus of 500 MPa or less as measured in accordance with ASTM D-790 are preferable.
  • ⁇ -olefin copolymer (ethylene and / or propylene) / ( ⁇ , ⁇ -unsaturated carboxylic acid and / or unsaturated carboxylic acid ester) copolymer, ionomer, aromatic vinyl compound / Conjugated diene compound-based block copolymers and the like, and one or more of them can be used.
  • Examples of the ⁇ -olefin copolymer include a copolymer of ethylene and an ⁇ -olefin having 3 or more carbon atoms, and a copolymer of propylene and an ⁇ -olefin having 4 or more carbon atoms.
  • Examples of the ⁇ -olefin having 3 or more carbon atoms include propylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene, 1-decene, 1-undecene and 1-dodecene.
  • the above (ethylene and / or propylene) / ( ⁇ , ⁇ -unsaturated carboxylic acid and / or unsaturated carboxylic acid ester) copolymer is an ⁇ , ⁇ -unsaturated copolymer with at least one selected from ethylene and propylene. It is a polymer obtained by copolymerizing at least one selected from carboxylic acid and unsaturated carboxylic acid ester monomers.
  • Examples of ⁇ , ⁇ -unsaturated carboxylic acid monomers include acrylic acid and methacrylic acid, and ⁇ , ⁇ -unsaturated carboxylic acid ester monomers include methyl esters, ethyl esters, propyl esters, butyl esters, pentyl esters, hexyl esters, heptyl esters, octyl esters, nonyl esters, decyl esters of these unsaturated carboxylic acids, etc. Is mentioned. These can use 1 type (s) or 2 or more types.
  • the above ionomer is obtained by ionizing at least part of the carboxyl group of the olefin and the ⁇ , ⁇ -unsaturated carboxylic acid copolymer by neutralization of metal ions.
  • the olefin ethylene is preferably used, and as the ⁇ , ⁇ -unsaturated carboxylic acid, acrylic acid and methacrylic acid are preferably used.
  • the olefin is not limited to those exemplified here.
  • a monomer may be copolymerized.
  • Metal ions include alkali metals such as Li, Na, K, Mg, Ca, Sr, Ba, alkaline earth metals, Al, Sn, Sb, Ti, Mn, Fe, Ni, Cu, Zn, Cd, etc. Is mentioned. These can use 1 type (s) or 2 or more types.
  • the aromatic vinyl compound / conjugated diene compound block copolymer is a block copolymer comprising an aromatic vinyl compound polymer block and a conjugated diene polymer block.
  • a block copolymer having at least one and at least one conjugated diene polymer block is used.
  • the unsaturated bond in the conjugated diene polymer block may be hydrogenated.
  • the aromatic vinyl compound polymer block is a polymer block mainly composed of structural units derived from an aromatic vinyl compound.
  • the aromatic vinyl compound includes styrene, ⁇ -methylstyrene, o-methylstyrene, m-methylstyrene, p-methylstyrene, 2,4-dimethylstyrene, vinylnaphthalene, vinylanthracene, 4-propylstyrene, Examples include 4-cyclohexyl styrene, 4-dodecyl styrene, 2-ethyl-4-benzyl styrene, 4- (phenylbutyl) styrene, and the like, and one or more of them can be used.
  • the aromatic vinyl compound-based polymer block may optionally have a structural unit composed of a small amount of other unsaturated monomer.
  • Conjugated diene polymer blocks include 1,3-butadiene, chloroprene, isoprene, 2,3-dimethyl-1,3-butadiene, 1,3-pentadiene, 4-methyl-1,3-pentadiene, 1,3- This is a polymer block formed from one or more conjugated diene compounds such as hexadiene.
  • the unsaturated in the conjugated diene polymer block A part or all of the bonding portion is saturated by hydrogenation.
  • the molecular structure of the aromatic vinyl compound / conjugated diene compound block copolymer and the hydrogenated product thereof may be any of linear, branched, radial, or any combination thereof.
  • an aromatic vinyl compound / conjugated diene compound block copolymer and / or a hydrogenated product thereof one aromatic vinyl compound polymer block and one conjugated diene polymer block are linear.
  • the three polymer blocks are linearly bonded in this order: diblock copolymer, aromatic vinyl compound polymer block-conjugated diene polymer block-aromatic vinyl compound polymer block.
  • One or more of triblock copolymers and hydrogenated products thereof are preferably used.
  • Unhydrogenated or hydrogenated styrene / butadiene block copolymer unhydrogenated or hydrogenated styrene / isoprene block copolymer Copolymer, unhydrogenated or hydrogenated styrene / isoprene / styrene block copolymer, unhydrogenated or hydrogenated styrene / butadiene / styrene Block copolymers, unhydrogenated or hydrogenated styrene / isoprene / butadiene / styrene block copolymer.
  • ⁇ -olefin copolymers used as impact modifiers (ethylene and / or propylene) / ( ⁇ , ⁇ -unsaturated carboxylic acid and / or unsaturated carboxylic acid ester) copolymers, ionomers
  • the aromatic vinyl compound / conjugated diene compound block copolymer is preferably a polymer modified with an unsaturated compound having at least one selected from a carboxyl group and an acid anhydride group.
  • the terminal amino group of the semi-aromatic polyamide reacts with at least one selected from the carboxyl group and acid anhydride group of the impact modifier, so that the semi-aromatic This is because the affinity of the interface between the phase of the aromatic polyamide and the phase of the impact modifier is increased, and the impact resistance and elongation characteristics are improved.
  • Examples of the unsaturated compound having a carboxyl group in a modified polymer modified with an unsaturated compound having at least one selected from a carboxyl group and an acid anhydride group include: Examples include ⁇ , ⁇ -unsaturated carboxylic acids such as acrylic acid, methacrylic acid, maleic acid, fumaric acid, and itaconic acid. Examples of the unsaturated compound having an acid anhydride group include dicarboxylic anhydrides having an ⁇ , ⁇ -unsaturated bond such as maleic anhydride and itaconic anhydride.
  • the unsaturated compound having at least one selected from a carboxyl group and an acid anhydride group is preferably a dicarboxylic anhydride having an ⁇ , ⁇ -unsaturated bond, and more preferably maleic anhydride.
  • the content of carboxyl groups and acid anhydride groups in the modified polymer is preferably in the range of 25 to 200 ⁇ mol / g, and more preferably in the range of 50 to 100 ⁇ mol / g. If the content of the functional group is 25 ⁇ mol / g or more, the impact resistance improving effect is sufficient, while if it is 200 ⁇ mol / g or less, the fluidity of the resulting resin composition is lowered. It can avoid that a moldability falls.
  • Examples of the modification method using an unsaturated compound having at least one selected from a carboxyl group and an acid anhydride group include the ⁇ -olefin copolymer, (ethylene and / or propylene) / ( ⁇ , ⁇ -unsaturated carboxylic acid) And / or unsaturated carboxylate ester) copolymer, ionomer, aromatic vinyl compound / conjugated diene compound block copolymer (hereinafter also referred to as “base resin”) by addition polymerization, Examples thereof include a method of copolymerizing with an unsaturated compound having an acid anhydride group and a method of grafting the unsaturated compound having a carboxyl group and / or an acid anhydride group to the above base resin.
  • base resin aromatic vinyl compound / conjugated diene compound block copolymer
  • the content is preferably in the range of 3 to 30% by mass with respect to the resin composition. More preferably, it is the range.
  • the conductive filler includes all fillers added for imparting conductive performance to the resin composition, and examples thereof include granular, flaky and fibrous fillers.
  • Examples of the particulate filler include carbon black and graphite.
  • Examples of the flaky filler include aluminum flakes, nickel flakes, and nickel-coated mica.
  • Examples of the fibrous filler include carbon fibers, carbon-coated ceramic fibers, carbon whiskers, carbon nanotubes, aluminum fibers, copper fibers, brass fibers, and stainless steel fibers. Among these, carbon nanotubes and carbon black are preferable.
  • the content is such that the surface specific resistance value of the layer containing the conductive filler of the multilayer tube of the present invention is 10 8 ⁇ / square from the viewpoint of obtaining sufficient antistatic performance.
  • the amount is preferably 10 6 ⁇ / square or less.
  • the content of the conductive filler is preferably in the range of 0.5 to 30% by mass, more preferably in the range of 0.5 to 20% by mass with respect to the resin composition, and in the range of 1 to 15% by mass. More preferably.
  • Fillers include, for example, fibrous fillers such as glass fibers, calcium carbonate, wollastonite, silica, silica alumina, alumina, titanium dioxide, potassium titanate, magnesium hydroxide, molybdenum disulfide, etc. Fillers; Flaky fillers such as hydrotalcite, glass flakes, mica, clay, montmorillonite, kaolin and the like.
  • the crystal nucleating agent is not particularly limited as long as it is generally used as a crystal nucleating agent for polyamide.
  • talc calcium stearate, aluminum stearate, barium stearate, zinc stearate, antimony oxide, oxidation Magnesium, any mixture thereof and the like can be mentioned. Of these, talc is preferred because of its great effect of increasing the crystallization rate of polyamide.
  • the crystal nucleating agent may be treated with a silane coupling agent, a titanium coupling agent or the like for the purpose of improving the compatibility with the polyamide.
  • the stabilizer for heat, light or oxygen is not particularly limited as long as it is generally used as a stabilizer for polyamides.
  • the stabilizer for heat, light or oxygen is not particularly limited as long as it is generally used as a stabilizer for polyamides.
  • a halide eg, chloride, bromide, iodide
  • a Group I metal eg, sodium, potassium, lithium
  • copper (I) halide eg, copper (I) chloride
  • the plasticizer is not particularly limited as long as it is generally used as a plasticizer for polyamides.
  • benzenesulfonic acid alkylamide compounds for example, benzenesulfonic acid alkylamide compounds, toluenesulfonic acid alkylamide compounds, hydroxybenzoic acid alkylester compounds Etc.
  • the lubricant is not particularly limited as long as it is generally used as a lubricant for polyamide.
  • ester compounds, metal soap compounds, and polyolefin waxes include ester compounds, metal soap compounds, and polyolefin waxes.
  • Fatty acid amide compounds such as stearic acid amide, palmitic acid amide, methylene bisstearyl amide, ethylene bisstearyl amide and the like are preferable because of their excellent external lubricity effect.
  • melt-kneading conditions are not particularly limited, and for example, a method of melt-kneading for 1 to 30 minutes in a temperature range 30 to 50 ° C. higher than the melting point of the semi-aromatic polyamide is employed.
  • the thickness of the innermost layer (A) and the outermost layer (B) of the multilayer tube for fuel transportation of the present invention is not limited, but the thickness of each layer is preferably in the range of 0.01 to 1 mm, preferably 0.02 to 0.7 mm. Is more preferable, and a range of 0.03 to 0.5 mm is more preferable. When the layer thickness is 0.01 mm or more, impact resistance and biodiesel fuel resistance are good. Moreover, if the layer thickness of the innermost layer is 1 mm or less, economical efficiency and flexibility are good.
  • the layer thicknesses of the innermost layer (A) and the outermost layer (B) of the multilayer tube for fuel transportation can be measured from an actual image obtained by observing the tube cross section with a microscope.
  • the material constituting the intermediate layer (C) of the multilayer tube for fuel transportation of the present invention is characterized in that the flexural modulus measured in accordance with ISO 178 is 800 MPa or less.
  • the flexural modulus of the intermediate layer (C) is preferably 750 MPa or less, and more preferably 600 MPa or less. If the flexural modulus of the intermediate layer (C) is 800 MPa or less, a multilayer tube for transporting fuel that has excellent elongation characteristics and hardly cracks when inserted into another member such as a quick connector can be obtained.
  • thermoplastic resin composition examples include polycaproamide (polyamide 6), polyhexamethylene adipamide (polyamide 66), polyundecanamide (polyamide 11), polydodecanamide (polyamide 12), and polyhexamethylene dodecanamide (polyamide 612).
  • Modified polyolefin resin modified with a compound having an epoxy group, etc . polybutylene terephthalate Polyester resins such as polyethylene terephthalate (PET), polyethylene isophthalate (PEI), PET / PEI copolymer, polyarylate, polybutylene naphthalate, polyethylene naphthalate, liquid crystalline polyester; polyether resins such as polyacetal and polyphenylene oxide; Polysulfone resins such as polysulfone and polyethersulfone; polythioether resins such as polyphenylene sulfide and polythioether sulfone; polyketone resins such as polyether ether ketone and polyallyl ether ketone; and polyacrylonitrile, polymethacrylonitrile, acrylonitrile-styrene Polymer, acrylonitrile-butadiene-styrene copolymer, methacrylonitrile-butadiene-styrene copolymer
  • Polymethacrylate resins such as polymethyl methacrylate and polyethyl methacrylate; Polyvinyl ester resins such as polyvinyl acetate; Polyvinylidene chloride, polyvinyl chloride, vinyl chloride-vinylidene chloride copolymer, vinylidene chloride Polyvinyl chloride resins such as methyl acrylate copolymer; Cellulose resins such as cellulose acetate and cellulose butyrate; Polyvinylidene fluoride, polyvinyl fluoride, ethylene-tetrafluoroethylene copolymer, polychlorotrifluoroethylene, ethylene-chloro Fluoropolymers such as trifluoroethylene copolymer, tetrafluoroethylene-hexafluoropropylene copolymer, tetrafluoroethylene-hexafluoropropylene-vinylidene fluoride copolymer; polycarbonate resin; heat Plastic polyimide,
  • thermoplastic polyurethane resins are preferable.
  • thermoplastic resins may be used individually by 1 type, and may use 2 or more types together. Examples of materials other than the thermoplastic resin composition that can constitute the intermediate layer (C) include paper, metal-based materials, woven fabrics, and nonwoven fabrics.
  • the decomposition product of FAME permeates the innermost layer (A) or the outermost layer (B) and contacts the intermediate layer (C).
  • the intermediate layer (C) contains an aliphatic polyamide
  • the intermediate layer (C) does not contain an aliphatic polyamide because degradation of the FAME, particularly degradation of the aliphatic polyamide due to an acid component cannot be excluded as a possibility.
  • Embodiments are also preferred.
  • the content of the thermoplastic resin is preferably 40% by mass or more, more preferably 60% by mass or more, and still more preferably 80% by mass with respect to the thermoplastic resin composition. As mentioned above, More preferably, it is 90 mass% or more.
  • the content of the thermoplastic resin is 40% by mass or more, it is easy to obtain a multilayer tube for transporting fuel that is excellent in elongation characteristics and hardly cracks when inserted into another member such as a quick connector.
  • the intermediate layer (C) is composed of a thermoplastic resin composition
  • the thermoplastic resin composition is described in the sections of the innermost layer (A) and the outermost layer (B) as long as the effects of the present invention are not impaired. Other ingredients may be included.
  • the other components are preferably 60% by mass or less, more preferably 40% by mass or less, further preferably 20% by mass or less, and still more preferably 10% by mass or less. May be included.
  • the method of melt-kneading etc. are mentioned similarly to the manufacturing method of the resin composition which comprises an innermost layer (A) and an outermost layer (B).
  • the thickness of the intermediate layer (C) of the multilayer tube for fuel transportation of the present invention is not limited, but the layer thickness is preferably in the range of 0.1 to 2.0 mm, more preferably in the range of 0.2 to 1.5 mm. The range of 0.5 to 1.0 mm is more preferable. If the layer thickness is 0.1 mm or more, it is easy to obtain a multilayer tube for transporting fuel that is excellent in elongation characteristics and hardly cracks when inserted into another member such as a quick connector. Moreover, if the layer thickness of the innermost layer is 2.0 mm or less, the economic efficiency is good.
  • the layer thickness of the intermediate layer (C) of the multilayer tube for fuel transportation can be measured from an actual image obtained by observing the tube cross section with a microscope.
  • the multilayer tube for fuel transportation of the present invention may further include other layers in addition to the innermost layer (A), the outermost layer (B), and the intermediate layer (C).
  • the material constituting the other layers materials similar to those exemplified as materials constituting the innermost layer (A), the outermost layer (B), and the intermediate layer (C) can be used.
  • the other layers preferably include at least one layer having a barrier property against each component in the fuel (hereinafter also referred to as “intermediate barrier layer”).
  • the material constituting the intermediate barrier layer is preferably at least one material selected from ethylene-vinyl acetate copolymer saponified product (EVOH), the fluororesin, and the semi-aromatic polyamide. More preferred is at least one material selected from semi-aromatic polyamides.
  • the intermediate barrier layer preferably has a total layer thickness of 0.1 to 1.0 mm, more preferably 0.15 to 0.5 mm from the viewpoint of imparting barrier properties. Further, the intermediate barrier layer may have two or more layers, and the “total layer thickness” in this case refers to the total layer thickness of the intermediate barrier layer.
  • an adhesive layer may be included between the respective layers in order to improve interlayer adhesion.
  • the material constituting the adhesive layer can be appropriately selected in consideration of the adhesiveness with each layer in contact with the adhesive layer.
  • the intermediate barrier layer may have a function as an adhesive layer.
  • the adhesive layer preferably has a layer thickness of 0.01 to 0.3 mm, more preferably 0.03 to 0.2 mm. If the thickness of the adhesive layer is within the above range, the elongation property imparted to the multilayer tube for fuel transportation of the present invention is not impaired by the presence of the intermediate layer (C). Note that two or more adhesive layers may be provided.
  • the material constituting the adhesive layer is preferably at least one selected from a modified polyolefin resin and a polyester resin.
  • the modified polyolefin is used as the material constituting the intermediate layer.
  • a resin it is more preferable to use a modified polyolefin resin as the material constituting the adhesive layer.
  • a polyester resin is used as the material constituting the adhesive layer. It is more preferable.
  • the number of layers constituting the multilayer tube for fuel transportation according to the present invention is excellent in biodiesel fuel resistance, hardly cracks even when inserted into other members, and has a viewpoint of the effect of the present invention that is excellent in elongation characteristics, From the viewpoint of productivity, it is preferably 3 to 7 layers, more preferably 3 to 6 layers.
  • As a preferable layer configuration of the multilayer tube for fuel transportation for example, the following configurations may be mentioned. In the following description, for example, the notation (a) / (b) / (c) is laminated in the order of (a), (b), (c) from the innermost layer of the multilayer tube for fuel transportation. It shows that.
  • the innermost layer / intermediate layer / outermost layer and the innermost layer / adhesive layer 1 / intermediate layer / adhesive layer 2 / outermost layer are preferred.
  • the resin compositions constituting the innermost layer and the outermost layer may be the same composition or different, are less likely to crack even when inserted into other members, and have the same composition because they have excellent elongation characteristics. It is preferable.
  • the multilayer tube for transporting fuel of the present invention may have a corrugated region.
  • the waveform region is a region formed in a waveform shape, a bellows shape, an accordion shape, a corrugated shape, or the like.
  • the corrugated region may extend over the entire length of the fuel transport multilayer tube or may have a portion.
  • the outer diameter and inner diameter of the multilayer tube for fuel transportation of the present invention are not particularly limited. Considering the flow rate and pressure of the fuel, for example, it can be arbitrarily selected from the range of an outer diameter of 4 to 200 mm and an inner diameter of 2 to 160 mm.
  • the multilayer tube for fuel transportation of the present invention can be produced using a molding method such as injection molding or extrusion molding.
  • a molding method combining the above molding methods can also be employed.
  • extrusion molding using a extruder corresponding to the number of layers or the number of materials, melt extrusion, a method of simultaneously laminating inside or outside the die (coextrusion method), or manufacturing a single-layer tube in advance
  • the multilayer tube for fuel transportation of the present invention is preferably manufactured by a coextrusion method. When manufacturing a tube having a corrugated region, it is possible to obtain a predetermined corrugated shape by first forming a straight tube and then molding.
  • the multilayer tube for fuel transportation of the present invention is used in an environment where both the innermost layer (A) and the outermost layer (B) are in contact with biodiesel fuel.
  • the application is not particularly limited as long as it is used in the above environment, but it is typically used for various pipes of a fuel pump module accommodated in a fuel tank.
  • the fuel pump module is housed in a fuel tank of an automobile or the like, and plays a role of supplying fuel to the internal combustion engine.
  • a typical fuel pump module has a fuel pump, a filter, a fuel transport tube (hose), and a flange that functions as a lid that closes the opening of the fuel tank.
  • a discharge pipe that discharges fuel to the internal combustion engine and a return pipe through which surplus fuel flows are provided on the outside of the flange, that is, a portion exposed to the outside of the fuel tank.
  • the fuel in the fuel tank is sucked and pressurized by the fuel pump, and is discharged from the discharge portion of the flange through the fuel transport tube.
  • the surplus fuel that has flowed in via the return pipe is typically returned to the fuel tank via another fuel transport tube.
  • the fuel pump module of the present invention uses the fuel transport multilayer tube of the present invention as the fuel transport tube, so that both the innermost layer (A) and the outermost layer (B) of the fuel transport multilayer tube are biodiesel fuel.
  • Examples of the structure of the fuel pump module of the present invention include those described in Japanese Patent Application Laid-Open No. 2004-28050 and Japanese Patent Application Laid-Open No. 2008-88824, and at least a part of the multilayer tube for fuel transportation is a fuel. If it is the structure immersed in the fuel in a tank, it will not restrict
  • Crystal melting heat and glass transition point Using a differential scanning calorimeter (DSC 822) manufactured by METTLER TOLEDO, about 10 mg of sample is heated at a rate of 10 ° C./min from 30 ° C. to a temperature higher than the melting point by 30 ° C. in a nitrogen atmosphere. did.
  • the value obtained by dividing the area of the melting peak that appears during heating by the sample weight was defined as the amount of heat of crystal melting ( ⁇ Hm).
  • the sample was kept at a temperature 30 ° C. higher than the melting point for 10 minutes to completely melt the sample, then cooled to 40 ° C. at a rate of 10 ° C./minute, and kept at 40 ° C. for 10 minutes.
  • the glass transition point (T g ) was defined as the intermediate point at which the DSC curve changed stepwise when the temperature was raised to 30 ° C. higher than the melting point again at a rate of 10 ° C./min.
  • middle layer, and contact bonding layer used by each Example etc. is shown below.
  • PA9T resin composition (PA9T) PA9T (amide group concentration: 0.118) obtained in Production Example 1 was used.
  • Polyamide 10T resin composition (PA10T) Daicel-Evonik's Vestamide HT PLUS M-3000 (amide group concentration: 0.111) was used.
  • HDPE High density polyethylene resin composition
  • Linear low density polyethylene resin composition (LLDPE)) Novatec LL series UE320 manufactured by Nippon Polyethylene Co., Ltd. was used.
  • thermoplastic polyurethane resin composition thermoplastic polyurethane
  • Hytrel 5557 TePU-ester
  • Adhesive resin When HDPE or LLDPE is used for the intermediate layer, Ubond F1100 manufactured by Ube Industries, Ltd., which is a modified polyolefin adhesive resin, is used. When polyester is used for the intermediate layer, polyester chemical resin, Mitsubishi Chemical ( Primalloy AP series GQ430 manufactured by KK was used.
  • a multilayer tube having an inner diameter of 6 mm and an outer diameter of 8 mm at 0.10 / 0.55 / 0.10 / 0.125 mm was obtained.
  • PA9T has an extrusion temperature of 310 ° C
  • an adhesive resin has an extrusion temperature of 190 ° C.
  • a multilayer tube having an outer diameter (B) of (A) / (D) / (B) 0.25 / 0.10 / 0.65 mm and an inner diameter of 6 mm and an outer diameter of 8 mm was obtained.
  • Example 1 to 7 correspond to Production Examples 2-1 to 2-7
  • Comparative Examples 1 to 6 correspond to Production Examples 2-8 to 2-13.
  • Crack test Each multilayer tube cut to a length of 200 mm was immersed in a biodiesel fuel (SME B30 with ULSD) manufactured by GAGE PRODUCTS and containing 30% by mass of SME, and kept at 90 ° C. The tube was visually confirmed at regular intervals, and the time when the crack occurred was recorded. The results are shown in Table 1.
  • the multilayer tube for transporting fuel according to the present invention has significantly improved resistance to biodiesel fuel compared to other tubes, and an intermediate layer having a bending elastic modulus of not more than a certain level ( By using C), for example, it has better elongation characteristics than when a semi-aromatic polyamide single-layer tube is used, and cracks are less likely to occur when inserted into other members. It is suitably used as a transport tube.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Textile Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Laminated Bodies (AREA)
PCT/JP2016/057439 2015-03-20 2016-03-09 燃料輸送用多層チューブおよびそれを備えた燃料ポンプモジュール、ならびにこれらの使用方法 WO2016152537A1 (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
KR1020177026114A KR102472750B1 (ko) 2015-03-20 2016-03-09 연료 수송용 다층 튜브 및 그것을 구비한 연료 펌프 모듈, 그리고 이것들의 사용 방법
US15/558,822 US10000045B2 (en) 2015-03-20 2016-03-09 Multilayer tube for fuel transportation, fuel pump module provided with same, use of same, and use of fuel pump module
CN201680016479.5A CN107405906B (zh) 2015-03-20 2016-03-09 燃料输送用多层管和具备该燃料输送用多层管的燃料泵模块、以及它们的使用方法
BR112017019632-8A BR112017019632B1 (pt) 2015-03-20 2016-03-09 Tubo de múltiplas camadas para o transporte de combustível
JP2017508198A JP6879489B2 (ja) 2015-03-20 2016-03-09 燃料輸送用多層チューブおよびそれを備えた燃料ポンプモジュール、ならびにこれらの使用方法
EP16768440.6A EP3272531A4 (en) 2015-03-20 2016-03-09 Multilayer tube for fuel transportation, fuel pump module provided with same, use of same, and use of fuel pump module
MX2017011988A MX2017011988A (es) 2015-03-20 2016-03-09 Tubo de multiples capas para transporte de combustible, modulo de bomba de combustible provisto con el mismo, uso del mismo, y uso del modulo de bomba de combustible.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015057302 2015-03-20
JP2015-057302 2015-03-20

Publications (1)

Publication Number Publication Date
WO2016152537A1 true WO2016152537A1 (ja) 2016-09-29

Family

ID=56977296

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/057439 WO2016152537A1 (ja) 2015-03-20 2016-03-09 燃料輸送用多層チューブおよびそれを備えた燃料ポンプモジュール、ならびにこれらの使用方法

Country Status (8)

Country Link
US (1) US10000045B2 (zh)
EP (1) EP3272531A4 (zh)
JP (1) JP6879489B2 (zh)
KR (1) KR102472750B1 (zh)
CN (2) CN112009059A (zh)
BR (1) BR112017019632B1 (zh)
MX (1) MX2017011988A (zh)
WO (1) WO2016152537A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018536801A (ja) * 2015-11-23 2018-12-13 テーイー オートモーティブ（フルダブリュック） ゲゼルシャフト ミット ベシュレンクテル ハフツング タンク内部配管系及び少なくとも１つのタンク内部配管系を有するタンク
WO2023188595A1 (ja) * 2022-03-31 2023-10-05 横浜ゴム株式会社 燃料輸送用ホース
WO2023218483A1 (en) * 2022-05-09 2023-11-16 Ashirvad Pipes Pvt. Ltd Multilayer flexible pressure pipes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006098434A1 (ja) * 2005-03-18 2006-09-21 Kuraray Co., Ltd. 半芳香族ポリアミド樹脂
JP2014240149A (ja) * 2013-06-11 2014-12-25 宇部興産株式会社 積層チューブ
JP2015501341A (ja) * 2011-10-13 2015-01-15 アルケマ フランス 半芳香族ポリアミドをベースとする可塑性組成物、その調製方法およびその使用

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60248710A (ja) * 1984-05-22 1985-12-09 Daikin Ind Ltd 新規エチレン／テトラフルオロエチレン系共重合体
JP2005178078A (ja) * 2003-12-17 2005-07-07 Ube Ind Ltd 積層構造体
EP1741549B1 (en) 2004-04-27 2016-09-07 Ube Industries, Ltd. Multilayer hose for transporting high-temperature chemical and/or gas
EP1741553B1 (en) * 2004-04-27 2011-10-05 Ube Industries, Ltd. Multilayer structure
JP2008100503A (ja) * 2006-09-19 2008-05-01 Kurashiki Kako Co Ltd 燃料チューブ
EP2066494B1 (en) * 2006-09-26 2010-08-25 DYTECH - Dynamic Fluid Technologies S.p.A. Multi-layer tube for conducting fuel in a motor vehicle
JP4923926B2 (ja) 2006-09-29 2012-04-25 株式会社デンソー 燃料ポンプモジュール
FR2928102B1 (fr) * 2008-03-03 2012-10-19 Arkema France Structure multicouche comprenant au moins une couche stabilisee
FR2928152B1 (fr) * 2008-03-03 2011-04-01 Arkema France Composition adhesive et structure comprenant au moins une couche de ladite composition
JP5572921B2 (ja) 2008-06-10 2014-08-20 宇部興産株式会社 バイオディーゼル燃料と直接接触する成形部材
JP5603113B2 (ja) * 2010-03-18 2014-10-08 東海ゴム工業株式会社 自動車燃料用インタンクチューブおよびその製法
JP5474623B2 (ja) * 2010-03-24 2014-04-16 東海ゴム工業株式会社 燃料用ホース
CN101985992A (zh) * 2010-11-22 2011-03-16 天津鹏翎胶管股份有限公司 一种耐生物柴油型多层复合尼龙管

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006098434A1 (ja) * 2005-03-18 2006-09-21 Kuraray Co., Ltd. 半芳香族ポリアミド樹脂
JP2015501341A (ja) * 2011-10-13 2015-01-15 アルケマ フランス 半芳香族ポリアミドをベースとする可塑性組成物、その調製方法およびその使用
JP2014240149A (ja) * 2013-06-11 2014-12-25 宇部興産株式会社 積層チューブ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3272531A4 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018536801A (ja) * 2015-11-23 2018-12-13 テーイー オートモーティブ（フルダブリュック） ゲゼルシャフト ミット ベシュレンクテル ハフツング タンク内部配管系及び少なくとも１つのタンク内部配管系を有するタンク
WO2023188595A1 (ja) * 2022-03-31 2023-10-05 横浜ゴム株式会社 燃料輸送用ホース
WO2023218483A1 (en) * 2022-05-09 2023-11-16 Ashirvad Pipes Pvt. Ltd Multilayer flexible pressure pipes

Also Published As

Publication number Publication date
BR112017019632A2 (pt) 2018-05-15
EP3272531A4 (en) 2018-08-08
US10000045B2 (en) 2018-06-19
JP6879489B2 (ja) 2021-06-02
KR102472750B1 (ko) 2022-11-30
US20180079190A1 (en) 2018-03-22
MX2017011988A (es) 2018-01-30
EP3272531A1 (en) 2018-01-24
CN112009059A (zh) 2020-12-01
KR20170128334A (ko) 2017-11-22
CN107405906B (zh) 2021-03-19
BR112017019632B1 (pt) 2022-08-09
JPWO2016152537A1 (ja) 2018-01-11
CN107405906A (zh) 2017-11-28

Similar Documents

Publication Publication Date Title
JP4175942B2 (ja) 積層構造体
JP4522406B2 (ja) 積層構造体
JP4480718B2 (ja) 高温薬液及び／又はガス搬送用積層ホース
JP6881618B2 (ja) 薬液輸送用多層チューブの製造方法
JP2005178078A (ja) 積層構造体
KR20070119646A (ko) 반방향족 폴리아미드 수지
JP2006281507A (ja) 積層構造体
KR102472750B1 (ko) 연료 수송용 다층 튜브 및 그것을 구비한 연료 펌프 모듈, 그리고 이것들의 사용 방법
JP6202253B2 (ja) 導電性積層チューブ
JP2005119017A (ja) 積層構造体
JP2014240148A (ja) 導電性積層チューブ
WO2017115699A1 (ja) ポリアミド樹脂組成物
JP6202254B2 (ja) 導電性積層チューブ
KR102292012B1 (ko) 성형체 및 그 제조방법
CN117396559A (zh) 聚酰胺组合物
JPWO2020175290A1 (ja) チューブ及びポリアミド樹脂組成物

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16768440

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017508198

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 20177026114

Country of ref document: KR

Kind code of ref document: A

REEP Request for entry into the european phase

Ref document number: 2016768440

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 15558822

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: MX/A/2017/011988

Country of ref document: MX

NENP Non-entry into the national phase

Ref country code: DE

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112017019632

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 112017019632

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20170914